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usn-5137-2
Vulnerability from osv_ubuntu
Published
2021-11-11 06:21
Modified
2026-09-14 08:02
Summary
linux-bluefield, linux-gke-5.4, linux-oracle, linux-oracle-5.4, linux-raspi, linux-raspi-5.4 vulnerabilities
Details

It was discovered that the f2fs file system in the Linux kernel did not properly validate metadata in some situations. An attacker could use this to construct a malicious f2fs image that, when mounted and operated on, could cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2019-19449)

It was discovered that the Infiniband RDMA userspace connection manager implementation in the Linux kernel contained a race condition leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service (system crash) or possible execute arbitrary code. (CVE-2020-36385)

Wolfgang Frisch discovered that the ext4 file system implementation in the Linux kernel contained an integer overflow when handling metadata inode extents. An attacker could use this to construct a malicious ext4 file system image that, when mounted, could cause a denial of service (system crash). (CVE-2021-3428)

Benedict Schlueter discovered that the BPF subsystem in the Linux kernel did not properly protect against Speculative Store Bypass (SSB) side- channel attacks in some situations. A local attacker could possibly use this to expose sensitive information. (CVE-2021-34556)

Piotr Krysiuk discovered that the BPF subsystem in the Linux kernel did not properly protect against Speculative Store Bypass (SSB) side-channel attacks in some situations. A local attacker could possibly use this to expose sensitive information. (CVE-2021-35477)

It was discovered that the btrfs file system in the Linux kernel did not properly handle removing a non-existent device id. An attacker with CAP_SYS_ADMIN could use this to cause a denial of service. (CVE-2021-3739)

It was discovered that the Qualcomm IPC Router protocol implementation in the Linux kernel did not properly validate metadata in some situations. A local attacker could use this to cause a denial of service (system crash) or expose sensitive information. (CVE-2021-3743)

It was discovered that the virtual terminal (vt) device implementation in the Linux kernel contained a race condition in its ioctl handling that led to an out-of-bounds read vulnerability. A local attacker could possibly use this to expose sensitive information. (CVE-2021-3753)

It was discovered that the Linux kernel did not properly account for the memory usage of certain IPC objects. A local attacker could use this to cause a denial of service (memory exhaustion). (CVE-2021-3759)

References
To clipboard 

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  "affected": [
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                  "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
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                  "type": "Ubuntu"
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              ]
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                  "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
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              ]
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              "id": "CVE-2021-3428",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
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                  "type": "Ubuntu"
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              ]
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              "id": "CVE-2021-3739",
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                  "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H",
                  "type": "CVSS_V3"
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                {
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                  "type": "Ubuntu"
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              ]
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                },
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                  "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H",
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              "id": "CVE-2021-3753",
              "severity": [
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                  "score": "CVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
                  "type": "CVSS_V4"
                },
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                  "score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N",
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                },
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              "severity": [
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                  "score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N",
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                  "type": "CVSS_V3"
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                  "type": "Ubuntu"
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              "severity": [
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                  "type": "CVSS_V3"
                },
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                  "score": "medium",
                  "type": "Ubuntu"
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        "binaries": [
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              "id": "CVE-2021-3743",
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  ],
  "aliases": [],
  "details": "It was discovered that the f2fs file system in the Linux kernel did not\nproperly validate metadata in some situations. An attacker could use this\nto construct a malicious f2fs image that, when mounted and operated on,\ncould cause a denial of service (system crash) or possibly execute\narbitrary code. (CVE-2019-19449)\n\nIt was discovered that the Infiniband RDMA userspace connection manager\nimplementation in the Linux kernel contained a race condition leading to a\nuse-after-free vulnerability. A local attacker could use this to cause a\ndenial of service (system crash) or possible execute arbitrary code.\n(CVE-2020-36385)\n\nWolfgang Frisch discovered that the ext4 file system implementation in the\nLinux kernel contained an integer overflow when handling metadata inode\nextents. An attacker could use this to construct a malicious ext4 file\nsystem image that, when mounted, could cause a denial of service (system\ncrash). (CVE-2021-3428)\n\nBenedict Schlueter discovered that the BPF subsystem in the Linux kernel\ndid not properly protect against Speculative Store Bypass (SSB) side-\nchannel attacks in some situations. A local attacker could possibly use\nthis to expose sensitive information. (CVE-2021-34556)\n\nPiotr Krysiuk discovered that the BPF subsystem in the Linux kernel did not\nproperly protect against Speculative Store Bypass (SSB) side-channel\nattacks in some situations. A local attacker could possibly use this to\nexpose sensitive information. (CVE-2021-35477)\n\nIt was discovered that the btrfs file system in the Linux kernel did not\nproperly handle removing a non-existent device id. An attacker with\nCAP_SYS_ADMIN could use this to cause a denial of service. (CVE-2021-3739)\n\nIt was discovered that the Qualcomm IPC Router protocol implementation in\nthe Linux kernel did not properly validate metadata in some situations. A\nlocal attacker could use this to cause a denial of service (system crash)\nor expose sensitive information. (CVE-2021-3743)\n\nIt was discovered that the virtual terminal (vt) device implementation in\nthe Linux kernel contained a race condition in its ioctl handling that led\nto an out-of-bounds read vulnerability. A local attacker could possibly use\nthis to expose sensitive information. (CVE-2021-3753)\n\nIt was discovered that the Linux kernel did not properly account for the\nmemory usage of certain IPC objects. A local attacker could use this to\ncause a denial of service (memory exhaustion). (CVE-2021-3759)\n",
  "id": "USN-5137-2",
  "modified": "2026-09-14T08:02:04Z",
  "published": "2021-11-11T06:21:50Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-5137-2"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2019-19449"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2020-36385"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2021-3428"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2021-3739"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2021-3743"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2021-3753"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2021-3759"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2021-34556"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2021-35477"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "summary": "linux-bluefield, linux-gke-5.4, linux-oracle, linux-oracle-5.4, linux-raspi, linux-raspi-5.4 vulnerabilities",
  "upstream": [
    "UBUNTU-CVE-2019-19449",
    "UBUNTU-CVE-2020-36385",
    "UBUNTU-CVE-2021-3428",
    "UBUNTU-CVE-2021-3739",
    "UBUNTU-CVE-2021-3743",
    "UBUNTU-CVE-2021-3753",
    "UBUNTU-CVE-2021-3759",
    "UBUNTU-CVE-2021-34556",
    "UBUNTU-CVE-2021-35477"
  ]
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.


Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.